
<template>
  <div class="article-page">
    <nav class="my-nav van-hairline--bottom">
      <a href="javascript:;"
      @click="sorter = 'weight_desc'"
      :class = "{active: sorter === 'weight_desc'}"
      >推荐</a>

      <a href="javascript:;"
      @click="sorter =null"
      :class = "{active: sorter=== null}"
      >最新</a>

      <div class="logo"><img src="@/assets/logo.png" alt=""></div>

    </nav>
<van-list @load ="onLoadMore" v-model = "loading" :finished = "finished" finished-text = '没有更多了' >
  <ArticleItem v-for=" item in list" :key="item.id" :item="item"></ArticleItem>
</van-list>

  </div>

</template>

<script>
import { getArticles } from '@/api/article'

export default {
  name: 'article-page',
  data () {
    return {
      list: [],
      current: 1,
      loading: false,
      finished: false,
      sorter: 'weight_desc'
    }
  },
  methods: {
    async loadData () {
      const res = await getArticles({
        current: this.current,
        sorter: this.sorter
      })
      this.list.push(...res.data.rows)
      this.loading = false
      this.current++
      if (this.current > res.data.pageTotal) {
        this.finished = true
      }
    },
    onLoadMore () {
      this.loadData()
      console.log('---->', '到底了', JSON.stringify(this.isLoading === true))
    }
  },
  watch: {
    sorter () {
      console.log('---->', '该变了 ')
      this.list = []
      this.current = 1
      this.finished = false
      this.loadData()
    }
  }
}
</script>

<style lang="less" scoped>
.article-page {
  margin-bottom: 50px;
  margin-top: 44px;

  .my-nav {
    height: 44px;
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    z-index: 999;
    background: #fff;
    display: flex;
    align-items: center;

    >a {
      color: #999;
      font-size: 14px;
      line-height: 44px;
      margin-left: 20px;
      position: relative;
      transition: all 0.3s;

      &::after {
        content: '';
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        bottom: 0;
        width: 0;
        height: 2px;
        background: #222;
        transition: all 0.3s;
      }

      &.active {
        color: #222;

        &::after {
          width: 14px;
        }
      }
    }

    .logo {
      flex: 1;
      display: flex;
      justify-content: flex-end;

      >img {
        width: 64px;
        height: 28px;
        display: block;
        margin-right: 10px;
      }
    }
  }
}

.article-item {
  .head {
    display: flex;

    img {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      overflow: hidden;
    }

    .con {
      flex: 1;
      overflow: hidden;
      padding-left: 10px;

      p {
        margin: 0;
        line-height: 1.5;

        &.title {
          width: 280px;
        }

        &.other {
          font-size: 10px;
          color: #999;
        }
      }
    }
  }

  .body {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin-top: 10px;
  }

  .foot {
    font-size: 12px;
    color: #999;
    margin-top: 10px;
  }
}
</style>
